.bg_header{
    height:30px; 
    border: 0px #fff;
    border-radius: 5px 5px 0 0;
    background: #2672ec;
}
#trangchu_left{
    color:#fff;
    font-size: 14px;
    font-weight: bold
}
#trangchu_left tr td{
    text-align: center;
}
#trangchu_left table{
    padding-top: 5px;
}
#trangchu_left tr td table tr td{
    padding:0px 5px 0px 0px;
}
.noidungchon{
    height: 150px;
    border-radius: 0 0 5px 5px;
    font-weight: normal;
    background: #d1e8f0;
}
.noidungchon:hover,visted td{
    font-weight:bold;
}
